Automatic buffing-machine.



C. A. CLARK. AUTOMATIC BUFFING MACHINE. APPL'IUATION FILED JUNE 15. 1911.

K c.A;cLARK. AUTOMATIC BUFFING MACHINE.

.1,01 2 4. APPPmATlon FILED Juris, 1911. Patented Dec' 26, 191,1

C. A. CLARK. AUTOMATIUBUPPING Mmmm.

APPLIOATION FILED JUNE 15, 15.1.2..

1,012,814. 'Patented De... fw, v1911.

7 SHEETS-SHEET 5.

0.A.0LARK. AUTOMATIC BUPFING MACHINE.

DQ-I-Qo AIPLIUATION FILED JUNE l5, 1911. Dec- 26 7 SHEETS-SHEET 6.

VWTnesSes invenfor za4 znrczg4 C, A. CLARK. AUTOMATIC BUFPING MAQHINE. APPLIo'An'oN FILED JM: 15, 1911.

Wfnesss Pmfnkhm nvenToT ff Patented Dec. 26, 1911.

7 SHEETS-SHEET 7.

ingworms, gears,'arms and bearings. At'- UNITED sTATEs PATENT oEEio'E.

f CHARLES ALBERT CLARK, or TOLEDO, oHIo.

' To all whom Ztmay concern:

CHARLES. ALBERTv Be itknown that I,

..CLARK, a-citizenof the United States, re-

siding at Toledo, in the county of Lucas and State'of Ohio, .have invented a new and use#4 ful Automatic Bufing--Maclune, of Vwhich the following is 'a specification.

My invention relates to an automatic bud#- ingI machine comprising a vertical shaft carrying two separate bufiing wheels in close proximity to each other, said Wheels held wheels is revoluble within a frame carrytached to this' frame at the periphery are one or more frames .each carrying a revoluble head. Thishead consists of'a fixed casing with .trunnions and xed gear attached to the same, meshing into a cam operated rack driven by a flexible shaf t,'1 in1 versal joints and gears, from the main block7 paste or shaft carrying the buffing wheels. This ball bearing head casing carries within itself a reversible electrically operated chuck, driven by a worm and shaft running 'through the center of the trunnions, said shaft driven by universal joints, flexible slgaft and gears from the main shaft. E; vmeans of' universal joints as many Sep* grate heads may be connected up as desired, but the power is only transmitted to the first unit, being connected to'each :other by universal joints and, splined, sliding, adjustable shafts.- Limeand tripoli', either in semi-liquid form'is applied automaticallyby the action ofthe bufiing wheels themselves, Awhich back linto a roll.

held revoluble on `the 'end of a lever,'which' lever'is pivoted on a clamp fastened to one ofthe posts supporting the feeding mecha# nism. v This clamp 1s made with a' slotradial to the center of the machine and at the eX- treme end of this slot bearingvarmis a pivot.

`for the operating roll arm which is connected "by a spring to the arm, said arm in said slot and so made as to hold firmly the block, paste or semifliquid which is made for bufiing. The .feeding mechanism of the machine is' adjustably connected to the electric reverslng switches so that when the head is in posltionto feed, the jaws are held in the roperposition whereby a cap or piece 15 -Figable chute.

' center plate 113,

. connected to" arm AUTMATIC BUFFING-IVIACHTNE.

which operates the electric 'switch' also Specification of Letters Patent. i 'l Patented De, 26,' 1911., Application filed .Tunel15, 1911. Serial No. 633,437. .I l

works van adjustable release arin, said.. cam

arm having vthree functions; rst, to release third to allow another cap lor piece to fall into the distributer. box lfrom the chute by a cap; second, to close the release arm and' lifting al stop spring. I attain these objects' by the mechanism illustrated in thel accompanyingv drawings, in which:

Fig. 1 is a vertical sectionofpart 'ofthe machine. Fig'."2 is a longitudinal section.

of the revoluble head. Fig' is a side elevation .of parts of the machine. Fig: 4 -is a cross section of the revoluble head taken on line ara, Fig.` 2. Fig. o isa -cross'- section of'the. revolublehead 'taken on line bwl),

Q 'showing magnets and magnet arms; .F 1g."6,is anend elevation of the revoluble head showing .three jaws. Fig. 7. is a cross section of-the 'revoluble head taken on line c.c Fig. 2showingradial and 4thrust'bearings and worm. Fig. Sis aside elevation of the universal .joint showing the splined sliding shaft. Fig. `9is a vertical section of the 'machine showing the operating mechanism in its interior. Fig. 10 is a cross isa cross section taken at -line c'- e, Fig.` 9. Fig. 12 1s adiagramm'atlc plan shotvmg the electrical connections and 'part of the operat" ing mechanism. Fig. 13 is across. section of one -of the sector knife switches.- Fig. 14 is a diagrammatic View of the operating mecha` nism ofthe machine showing how the units are coi-inected one to the otherand the powerconnected' to one only, from 'the main drive.

Fig. 15 is a section of the adjustable chute.-

Fig. 16 is a partial elevation of the adjus'v The frame 1 carries ina pocket 2 on web 3, a thrust bearing .f1 on which. worm 5, collar 6 and worm 7 rest. Saidworm 5,1collar' 6 and/worm 7 being splinedtofthe main shaft 8 in bea-rings 8A and 83saijd th-rust' on which shaft is arm 18a,r.oonnected=t lever n 19, which lever 19 is connected to arm 20,

posite end cam lever 22, provided atits free pivoted onshaft 21' which carries-on its opend with a cam roll 23. YCam roll 23 is operated by cam 24, keyedjto shaft 25, which also has keyed thereto a gear 26 in mesh with of the frame by ball thrust plate 33, plates j 34 and 35, balls '36 and casing 36A by means to move.

of bolts 37. Bevel gear 31 is in mesh with Vbevel gear 38, keyedto shaft 39.

To shaft39 is pinned a collar' 41, holding ball race 42 and 43,v said race 43 being free holding ball' race 45 against collar 40 on shaft 39. Ball race 46 is held against the frame 1 by oap- 47, said cap being provided with dust washer 48. Shaft 39 (Fig. 14)A has pulley 4'9 keyed to same and belted to motor 50. Powerv is transmitted from motor 50 by belt to pulley 49, through shaft 39, gear 38, gear 31, shaft 8, worin 5, worm wheel 29, shaft 28, gear 27, gear 26shaft 25,

ear 51` gear 52 shaft 53 Gear 54 j ear 55 'shaft 56, universal joint 57,v shaft 58 to the' second, third, etc., units driving the shaft 56 ywith cam 59 keyed on same. Arm 61, carrying a cam roll 60, is keyed to shaft 62 and arni 63, also keyed to 'shaft' 62, has a link 64 connectedfto rack 65, which is in nieshwith gear 56, thus moving vhead 74 into its different positions. Also from shaft 25, the power is transmitted through gear 68'` gear 69. shaft 70, gear 71, gear 72, shaft 73 into casing 74, protected by dust caps 75, said shaft 7 3 having a'worin 76 with ball' race 78, held in position by collar 74 and'worm v76, with ball race 77 held at one side only by sleeve' 80. On the opposite side ball race 79 is held by ring 82 and worm 76; ball race ,81 is free.- Next to ring 82 is the ball thrust washer and race 83 with race and thrust washer 84 on opposite side of balls having a' backing washer 85, all held in position by ring 86. The worm 76 transmits the'power to worin gear 87,"which is a part of the revoluble` casing 88, said revoluble casing 88 being retained' in position by ball bearings.

Ring 89 holding` race 90 against the shoulder in the revoluble casing 8.8, while race 91 is held against a shoulder in case 74 by cap 92. Also ring 93 holds ball race 94 against a shoulder in the revoluble casing 88, said ball,

race 95 is held by ring 96 against a shoulder in case'74.

In `the forward endof the rev'oluble casing 88 are six electromagnets, 97, 98, 99, 100, 101 and 102, connected as shown in Fig. 12, all wires running through theV hollow revoluble casing 88 held by insulated blocks 103 Collar 44 is pinned to shaft' 39 held in position by caps 112A, thence out to the double 'throw double pole switch 113 to the quadrant switches 114 and 115, through battery or power supply switch 116.' This current travels iii one Case from battery"A 116, through magnets, 100, 101A and 102,

switch points 118, 122, to contact points 124,

back to battery or source of power. When' thedouble throw double pole switch is reversedv the current flows from battery or .source of power through magnets 97, 98 and 99, switch points 117, 120, 122 *tol switch points 1.23, through. 128, switch point 124 to battery. 1

sov

. The quadrant switches (see Fig. 13) con sist of an insulated block 129, h'olding quad 1- vrant of' metal 128 or 127, also having arms 130, 131, 132, 134 with connecting link 133 y and I135, a lever 136 pinned to shaft 137,-

having `cam arm lever 138 with cani 13935;. pinned to shaft 137. The whole movement',l

isoperated in one direction by lever 138,'

being moved by the .head.'74. and in the -oppositedirection by the adjustablepost 223, on rack 65, moving lever 132, held by -spring 141, against stop pin 140, the normal posit-ion of the mechanism as shown ,againstl pin 140 as in Fig. 12 and Fig. 1. Lever 144 1hasa fork at one end fitting over shaft' 137,`

having an adjustable projection 143 Awhich is in contact with cam 136, but. fast to fork l144. On the opposite end of fork 144 there .is a notch which catches lever 148 onl the downward movement of fork 144 only. Said lever 148 is pivoted at 149,.held by spring 15,0, against an adjustable stop 151. adjust- -able in slot 152, in spring arm 153.r "hen lever 138 is moved by hemd 174. cam`136 is j moved up against arm 143 moving/with it tlie'fork 144, which held by guide 147, said fork 144 having an inclined surface working on lever 145, which is held in a closed position by spring 146 normally.

This movement of lever 145, allows va cap or piece 155'to be dropped on chuck jaws '154, the cap 156', being. held from n'iovuig by spring 153 until fork` 144 drops back,

which it cannot do until head leavesthe loading position, then upon the Ifork 144 dropping to its normal position, the lnotch in fork 144 catches lever 148,"forcing vup l -I spring arm and spring 153, allowingcap or piece 156, to drop into place of cap or piece 155. These caps come down an adjustablechute, 157, composed (see Fig.- 15 and Fig. 16) of sides 157 and 158 and top 159 held by. adjustable bolts,160 being adjustable Which'ispart of platel i iing wheel-184I washer 185, and hel move .upward to their 1, held by bevel groovel revolving cone 1 67 '177, having a in Vslots 161'. VThese chutesl may be 'used in-A dependently with each-unit, being held to the uint by arm 162 on plate 163, 'supported bv posts 164. In case several units are-toz positionby arms 166 (Fig. 1) so holding' ring165-against the peripheryy ofthe revolving cone'167, which acts as a carrier of or pieces `from the main chute 168.

This

169, lheld inbearing 170, 171, V supported by esta 172, one of which is hollow to 'receive shafLU, havinggearlft, pinned on one end andigear 175 on the other end.v Meshed with gear 175,is gear 176, pinned to-shaft worm gear 17 8, in mesh with worm 7 splined to shaft 8. Shaft 8 has a shoulder 179, againstv which washer` 180, buliing wheel 181, washerv182 and 183,dbuf by ing keyed to gear locked nut 186.` lVhen these buiiing'wheels normal position washer 185, comes in contact'4 with roll 187 on arm 188, pivoted on an adjustable clamp 189, saidclamp having a slot 190 in which is adjustably pivoted yarm 191, having an adjustable clamp piece 192, holding bufling compound 193 -a,g\gainst wheel 184,'by springI 'pressure through .fastened between arms spring 194,

188 and 191. Vhen washer 180 'comes bufiing wheels are down,

arm 196, -pivoted in contact with roll 195, on on" an adjustable pivoted adjustable clamp 200, holding the bufting compound 201 by lspring 'pressure against wheel 181 by spring 202 between lever V196 and arm 199.

Eachunit machine is heldl to frame 1 by 'arms 203, one of which is shown in Fig; 1, said arms being adjustably bolted to frame 204 and bolts 205, one of which is shown in Fig. 1. This arm 203 has two bosses 204 into which is bolted shafts 205 and 206,*passing through bosses 207, 208 o n frame 209, which frame has bearings 210.`and 211 and bearing caps 212 and 213, said shafts making the unit adjustable to and from the buiing wheels by set screws 214. The electric clutch has three arms 215, 216 and 217, shown in Fig. 4, Fig. 5, and Fig. 6, said arms being pivot-ed by removable studs 218, 219, 220. rlhe outer ends of these chuck armshave a slot 221, screw holes 222, said screw holes used to bolt on such additional pieces, shown in Fig. 3 as 154, as may be required by the nature ofthe piece to be buifed. The caps or pieces, when the head is in the release position, or discapsa" means i's made revoluble by be-v casing automatically said spring' arm 199, having anvertically revoluble frame carrymg -ing heads, and means will slide downI the chute charge position,

shown.

224 toa receptacle not I claim:

1. The combination of a vertically moving set of revolving and revolving head, an automatic electrlc chuck, .revolving within the head, a casing carrying the .revolving chuck .and head, and for moving the4 casing with lits moving. parts holding the article'- to be bufi'ed. j

. 2. The combination, of a pair of vertically driven andverticaly moving bung wheels which feed themselves with their proper bufng wheels, a moving bufling compound, anfautomatic selfl fee -l land movable head carried in1 ing revolving a 'casing moved in conjunction with the buing wheels.' j

3. The combination of vertically4 driven, vertically moving compound self feeding bufi'ng wheels, a'nSelectric automatic revolv-v ing chuck and head carrying an article to be buffed, a swinging 'casing operated in conjunction with the buing -wheels said discharging and chargin the automaticelectric chuck. 4. The combination'of a pair and movable' buffing wheels von a vertical shaft, feeding themselves automatically with the compounds for'buffng, two or more revolving electrically controlled chucks carrying articles to be bufed, each a separate lunit in itself,capable of adjustment to and from-the said wheels, means lfor driving the heads of each ui'it and operating the casing either separately or together, an adjustable independent automatic chute 'for each unitautomatic in its action.

5. The combination of twin buiimg Wheels land movable by and revolving electrically through two or more controlled heads held ina casing supported and adjustable frame said .fa-n adjustable automatic chute for feeding articles to be bufed and ari-adjustablev chute for carrying away the. finished goods.

6. The combinationof vertically driven and movable buiingwheel's, a frame carrying the same with means for holding and driving a core distributer. means for holding one or in aA detachable each with vits automatic chuck for carrying the power from the main vertical shaft to each unit.

CHARLES ALBERT CLARK. l/Vitnesses P. DITTENHAVER, L. DITTENHAVER.

f revolving i more independent chuck carry- 

